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We are still shipping orders! Orders might take an extra day to ship, but we are doing our best to keep up with a reduced crew. Special order items are taking an extra 1-2 weeks.
We are still shipping orders! Orders might take an extra day to ship, but we are doing our best to keep up with a reduced crew. Special order items are taking an extra 1-2 weeks.

Sirai P302 30A Presssurestat

by Sirai
$128.00

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  • CE-SEV-ASE-UL approved
  • ISO 228 G connection 1/4"M for pipe ø 4x6 mm
  • adjustable scale 0.5÷1.4 bar
  • fixed differential 0.15 (± 0.06) bar
  • fluid temperature max: 140°C
  • max contact load: 220V 7KW (30A)

The Sirai (pronounced "SUH-RYE") commercial pressurestat for 110~120/220~240V equipment, #P302-6. This is the part that regulates your boiler heating via a diaphragm that expands and contracts as the boiler steam pressure raises and lowers, activating the contacts and sending a signal to the heating element telling it to turn on or off. It is by far the most common pressurestat used historically and today.

Of course in most cases any presurestat will work, but if there is room for it go with the Sirai. It is a purely mechanical part, and so there's no micro-switch to go out. The diaphrams go bad, and the contacts get fried. But the Sirai is essentially two or three pressurestats, depending on how many wires are used in your unit. There are six connections. When the contacts on the first set of contacts go bad, simply move the two wires over to the next available unused set.

European Espresso machine manufactures use British Standard Pipe fittings in their equipment. To measure a fitting, one measures the inside diameter of the male thread on a fitting. In most cases. Specialized fittings of course may have a wider or more narrow opening depending on the application and desired volume or flow rate through the fitting. But for the most part, it's the inside of a male fitting that is measured. A 1/4" Male BSP fitting will measure 13 mm (1/2") on the outside diameter, for what that's worth....

Factory specification sheet here

 

Cross-references:

Part number Manufacturer
20150 ASTORIA CMA
7433001 BEZZERA
5006010 BFC
00630.4.00.08 BRASILIA
000399 BRUGNETTI-AURORA
95.00275 CARIMALI
531-190-310 CIMBALI
00049035 ELEKTRA
558 ESPRESSO RESOURCE
60000000 EXPOBAR
60000005 EXPOBAR
2231116597 FAEMA
2231131900 FAEMA
531190310 FAEMA
5.2.000.0680 FIEMMA RST
A2100050 FIORENZATO C.S.
A2100314 FIORENZATO C.S.
FC1669 FRACINO
07935703 FUTURMAT-ARIETE
12001274 GAGGIA
WGADM0541 GAGGIA
07935703 GAGGIA SPAGNA (SPAIN)
1160800015 GRIMAC
1160800016 GRIMAC
A2100314 GRIMAC
GR814 GRIMAC
GR815 GRIMAC
GRC615 GRIMAC
V070 GRIMAC
07935703 ITALCREM
10060660 LAVAZZA
10066203 LAVAZZA
07935703 MAIRALI
L270 MARZOCCO
20150 MCE
09200006 NUOVA SIMONELLI
D20150 ORCHESTRALE
451301 PAVONI
34200110 RANCILIO
34200111 RANCILIO
9005050 RENEKA
GR814 RICAMBI GARDOSI
GR815 RICAMBI GARDOSI
GRC615 RICAMBI GARDOSI
V070 RICAMBI GARDOSI
5006010 ROYAL
SVTMP010 SAB ITALIA
1200127 SAECO
WGADM0541 SAECO
108007 SAN MARCO
10602010 SANREMO
10602010A SANREMO
C-0455 SCALA
01101 SPAZIALE
02623 SPAZIALE
ELETPRE VIBIEMME
09200006 VICTORIA ARDUINO
07935703 VISACREM
W10440 WEGA
WY20150 WEGA